sugar-toolkit-gtk3/services/clipboard/typeregistry.py
2007-04-19 12:20:48 -03:00

306 lines
7.6 KiB
Python

import logging
from gettext import gettext as _
import urlparse
import posixpath
class FileType:
def __init__(self, formats):
self._formats = formats
def get_name(self):
raise NotImplementedError
def get_icon(self):
raise NotImplementedError
def get_preview(self):
raise NotImplementedError
def get_activity(self):
raise NotImplementedError
def matches_mime_type(cls, mime_type):
raise NotImplementedError
matches_mime_type = classmethod(matches_mime_type)
class TextFileType(FileType):
_types = set(['text/plain', 'UTF8_STRING', 'STRING'])
def get_name(self):
return _('Text snippet')
def get_icon(self):
return 'theme:object-text'
def get_preview(self):
for format, data in self._formats.iteritems():
if format in TextFileType._types:
text = data.get_data()
if len(text) < 50:
return text
else:
return text[0:49] + "..."
return ''
def get_activity(self):
return 'org.laptop.AbiWordActivity'
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class ImageFileType(FileType):
_types = set(['image/jpeg', 'image/gif', 'image/png', 'image/tiff'])
def get_name(self):
return _('Image')
def get_icon(self):
return 'theme:object-image'
def get_preview(self):
return ''
def get_activity(self):
return ''
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class UriFileType(FileType):
_types = set(['_NETSCAPE_URL'])
def get_name(self):
return _('Web Page')
def get_icon(self):
return 'theme:object-link'
def get_preview(self):
for format, data in self._formats.iteritems():
if format in UriFileType._types:
string = data.get_data()
title = string.split("\n")[1]
return title
return ''
def get_activity(self):
return ''
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class PdfFileType(FileType):
_types = set(['application/pdf', 'application/x-pdf'])
def get_name(self):
return _('PDF file')
def get_icon(self):
return 'theme:object-text'
def get_preview(self):
return ''
def get_activity(self):
return 'org.laptop.sugar.Xbook'
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class MsWordFileType(FileType):
_types = set(['application/msword'])
def get_name(self):
return _('MS Word file')
def get_icon(self):
return 'theme:object-text'
def get_preview(self):
return ''
def get_activity(self):
return 'org.laptop.AbiWordActivity'
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class RtfFileType(TextFileType):
_types = set(['application/rtf', 'text/rtf'])
def get_name(self):
return _('RTF file')
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class AbiwordFileType(TextFileType):
_types = set(['application/x-abiword'])
def get_name(self):
return _('Abiword file')
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class SqueakProjectFileType(FileType):
_types = set(['application/x-squeak-project'])
def get_name(self):
return _('Squeak project')
def get_icon(self):
return 'theme:object-squeak-project'
def get_preview(self):
return ''
def get_activity(self):
return 'org.vpri.EtoysActivity'
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class OOTextFileType(FileType):
_types = set(['application/vnd.oasis.opendocument.text'])
def get_name(self):
return _('OpenOffice text file')
def get_icon(self):
return 'theme:object-text'
def get_preview(self):
return ''
def get_activity(self):
return 'org.laptop.AbiWordActivity'
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class UriListFileType(FileType):
_types = set(['text/uri-list'])
def _is_image(self):
uris = self._formats['text/uri-list'].get_data().split('\n')
if len(uris) == 1:
uri = urlparse.urlparse(uris[0])
ext = posixpath.splitext(uri.path)[1]
logging.debug(ext)
# FIXME: Bad hack, the type registry should treat text/uri-list as a special case.
if ext in ['.jpg', '.jpeg', '.gif', '.png', '.svg']:
return True
return False
def get_name(self):
if self._is_image():
return _('Image')
else:
return _('File')
def get_icon(self):
if self._is_image():
return 'theme:object-image'
else:
return 'theme:stock-missing'
def get_preview(self):
return ''
def get_activity(self):
return ''
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class XoFileType(FileType):
_types = set(['application/vnd.olpc-x-sugar'])
def get_name(self):
return _('Activity package')
def get_icon(self):
return 'theme:stock-missing'
def get_preview(self):
return ''
def get_activity(self):
return ''
def matches_mime_type(cls, mime_type):
return mime_type in cls._types
matches_mime_type = classmethod(matches_mime_type)
class UnknownFileType(FileType):
def get_name(self):
return _('Object')
def get_icon(self):
return 'theme:stock-missing'
def get_preview(self):
return ''
def get_activity(self):
return ''
def matches_mime_type(cls, mime_type):
return true
matches_mime_type = classmethod(matches_mime_type)
class TypeRegistry:
def __init__(self):
self._types = []
self._types.append(PdfFileType)
self._types.append(MsWordFileType)
self._types.append(RtfFileType)
self._types.append(OOTextFileType)
self._types.append(UriListFileType)
self._types.append(UriFileType)
self._types.append(ImageFileType)
self._types.append(AbiwordFileType)
self._types.append(TextFileType)
self._types.append(SqueakProjectFileType)
self._types.append(XoFileType)
def get_type(self, formats):
for file_type in self._types:
for format, data in formats.iteritems():
if file_type.matches_mime_type(format):
return file_type(formats)
return UnknownFileType(formats)
_type_registry = None
def get_instance():
global _type_registry
if not _type_registry:
_type_registry = TypeRegistry()
return _type_registry